The story: Amid indications that an Israeli ground incursion in Gaza is impending, US forces in Iraq and Syria have come under attack. The incidents have been claimed by shadowy armed groups in Iraq. Meanwhile, the US Navy has shot down drones and missiles fired from Yemen over the Red Sea. Israeli media report that southern Israel was the apparent target. The attacks highlight the dangers of a regional conflagration being sparked by the Hamas-Israel conflict.

The attacks in Iraq: US Central Command on Oct. 18 said “the US military defended” against...